FEC for IEEE.802.15.7. More details will be included soon. For more info, contact matgonsil@gmail.com (Mateus Silva).
The viterbi decoder (FEC_IEEE.802.15.7/v1.0/viterbi_decoder/viterbi_decoder_axi4s/) used in this project is a third party IP:
https://opencores.org/projects/viterbi_decoder_axi4s (It is under GPL license)
Another important piece of IEEE 802.15.7, the Run Length Limited (RLL), is available in https://github.com/GabPGomes/RLL_IEEE_802.15.7 . You should be able to integrate both if you are devloping IEEE 802.15.7 PHY layer.
All the remaining files/IPs are under MIT license.